We divide 261830 by 90
Our goal is to divide 261830 by 90.

Advancing to step 1:
2 divided by 90 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (6) from the dividend and append it to 2, then repeat: 26 / 90

Let's proceed to step 2:
90 can be fit into 26 0 times, resulting in a remainder of 26.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 26, we get 26.
Bring next digit (1) of the dividend behind the 26 and repeat the process: 261 / 90

Going ahead to step 3:
If we divide 261 by 90, we get 2 and a remainder of 81.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 81 after subtracting 180 from 261.
Bring next digit (8) of the dividend behind the 81 and repeat the process: 818 / 90

Going ahead to step 4:
90 goes into 818 9 times with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
The remainder is 8 after subtracting 810 from 818.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 90

On to step 5:
90 goes into 83 0 times with a remainder of 83.
The next digit of our result is 0. 
Result so far: 290.0
If we subtract 0 from 83, we get 83.
Append the next digit (0) from the dividend to 83 and continue with: 830 / 90

Going ahead to step 6:
90 can be fit into 830 9 times, resulting in a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 2909.0
Subtract 810 from 830 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
The number 90 fits into 200 2 times, leaving a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 2909.2
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
90 can be fit into 200 2 times, resulting in a remainder of 20.
The next digit of our result is 2. 
Result so far: 2909.22
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final outcome is 2909.22, with a leftover of 0.02.